Job integrity and security apparatus

Details Job integrity and security apparatus Job integrity and security apparatus

1990-08-30

1991-07-23

Grimley, Arthur T.

Photocopying

Contact printing

Light boxes

355204, 355308, G03G 2100

Patent

active

050347705

ABSTRACT:
An apparatus and method which provides job integrity and security for each sheet transported to and from a printing station including periods when a printing machine has cycled down enabling an operator to remove sheets therefrom. Each sheet transported to the printing station and each sheet delivered from the printing station is counted. A controller compares the number of sheets transported to the printing station to the number of sheets delivered from the printing station and the number of any sheets that may have been removed by the operator from the printing machine as a result of a cycle down. Operation of the printing machine will be inhibited if the number of sheets transported to the printing station do not equal the number of sheets delivered from the printing station and the number of sheets removed by the operator. Conversely, operation of the printing machine will be enabled if the number of sheets transported to the printing station does not equal the number of sheets delivered from the printing station and the number of sheets removed by the operator.

REFERENCES:
patent: 3588472 (1971-06-01), Glaster et al.
patent: 3813157 (1974-05-01), Fantozzi
patent: 4163897 (1979-08-01), Hubbard et al.
patent: 4229100 (1980-10-01), Travis
patent: 4511241 (1985-04-01), Tsudaka et al.
patent: 4521102 (1985-06-01), Motomura et al.
Bacon et al, "Copier Security System," IBM Technical Disclosure Bulletin, vol. 18, No. 6, 11/75--pp. 1747-1748.
Marinace, "Copier System for Confidential Papers," IBM Technical Disclosure Bulletin, vol. 15, No. 7, 12/72--pp. 2328.

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